Answer:
Many Bird ancestors like dinosaurs originally had these feathers even tho they didn't fly. Bird feathers have originally been thought to be used for mate attraction or even insulation. Modern birds have many different types of feathers!
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A single base substitution mutation is likely to have a less deleterious effect when the base change exhibits which of the following results
A single base substitution mutation will be the least likely to cause a deleterious effect when the base change produces the same amino acid as the original.
What is a silent mutation?This scenario is what we call a silent mutation. What this means is that the mutation is almost undetectable due to its not affecting the protein that it will help to form.This is possible thanks to how the genetic code operates, different codons are able to code for the same amino acid.Therefore, there are mutations that do not affect the amino acid or the protein.Therefore, we can confirm that a mutation will have no negative effects if it is a silent mutation, meaning that the substitution of a base pair happens to code for the same amino acid as the original.
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1 Both viruses and cells have - A Lysosomes B Mitochondria C Chloroplasts D Proteins
Explanation:
I think chloroplasts iam not sure
please help :(
Which of the following defines a cash crop?
any crop grown to be sold for direct sale
any crop grown to be sold to other growers
any crop grown to be sold as a raw material
any crop grown to be sold on the commodities market
Answer:
Any crop grown to be sold for Direct sale A cash crop or profit crop is an agricultural crop which is grown to sell for profit. ... The term is used to differentiate marketed crops from subsistence crops, which are those fed to the producer's own livestock or grown as food for the producer's family.Hope this helps you!!What are the four types of physical hazards?
Select the 4 answer options that apply.
Extreme Temperature
Radiation
Vibration
Noise
Pathogens
Corrosive substances
Answer:
1st 4 are the physcal hazards
Explanation:
a)
b)
c)
d)
The four types of physical hazards are Extreme Temperature, Radiation, Vibration and Noise.
What are Physical Hazards?A physical hazard is an agent, factor or circumstance that can cause harm with contact. They can be classified as type of occupational hazard or environmental hazard.
Physical hazards include ergonomic hazards, radiation, heat and cold stress, vibration hazards, and noise hazards.
Whereas, Corrosive substances comes into chemical hazards and Pathogens can be classified as biological hazards.
Thus, the Extreme Temperature, Radiation, Vibration and Noise are the best four options as the type of physical hazards.
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Skin is an epithelial tissue.give reason.
Answer:
well ik when people including myself use there hand witch is made out of skin as a tissue when they sneeze so there that's how we started this pandemic
Explanation:
What is purebred breeding?
A: A form of Straight Breeding with related animals?
B: A form of straight breeding with non-related animals
C: A form of straight breeding with registered animals
D: A form of straight breeding with grade females and purebred sires.
A: A form of Straight Breeding with related animals
PLEASE HELP I LITERALLY BEG!!!!!!
What’s the difference between transformed and untransformed bacteria
Answer:
DNA is accidentally moved from one bacterium to another by a virus
Explanation:In transformation, a bacterium takes up a piece of DNA floating in its environment. In transduction, DNA is accidentally moved from one bacterium to another by a virus. In conjugation, DNA is transferred between bacteria through a tube between cells.
some scientists predict that if global warming continues over the next few centuries, melting of the polar ice caps will rise the level of the oceans causing some peninsulas to become islands. how might this change eventually affect the species that live on these peninsulas?
Answer:
As global warming causes more snow and ice to melt each summer, the ocean and land that were underneath the ice are exposed at the Earth's surface. Because they are darker in color, the ocean and land absorb more incoming solar radiation, and then release the heat to the atmosphere.
Describe the three methods for harvesting stem cells, for each method, explain the benefits of the method and the ethical concerns related to the method
Answer: These stem cells are manipulated to specialize into specific types of cells, such as heart muscle cells, blood cells or nerve cells. The specialized cells can then be implanted into a person. For example, if the person has heart disease, the cells could be injected into the heart muscle.
Explanation: Describe the three methods for harvesting stem cells, for each method, explain the benefits of the method and the ethical concerns related to the method
Stem cells are specialized cells that can proliferate into many types of cells lineages. Umbilical cord blood collection, bone marrow harvesting and dental pulp collection are the methods.
What are stem cells harvest methods?Stem cells can be collected from the blood and the tissues of the umbilical cord of the baby born and is an easy method that collects the cells from the umbilical cord and the placenta for future use.
The cells and the tissues are chopped and kept in the low temperatures that include the Mesenchymal stem cells in it. They are beneficial as they can treat cancers, anaemia etc. There are not many ethical issues related to umbilical cord use.
Stem cells can be derived from the bone marrow as this is the site where they originate from. The method uses the removal of the bone marrow from the pelvic bones and subjects them to the removal of the stem cells from the blood.
Stem cells from the bone marrow are used for the replacement of damaged cells. The use of the bone marrow and using human lives is the ethical issue concerned with bone marrow based stem cells.
The dental pulp collection method of the stem cells uses the method of deriving cells from the teeth region and are a source of the bone and the mesenchymal cells.
DPSCs can be used for cell banking and are the method that has no ethical concerns. It is simple can be done in dental routines.
Therefore, umbilical cord, dental pulp and bone marrow are the stem cells collection methods.
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Do I look beautiful for my interview
Answer:
yessir
Explanation:
thanks for the 8 pts
A DNA molecule is shaped like a _____.
A. Straight Ladder
B. Triple Helix
C. Long thin rod
D. Spiral Staircase
Answer: D. Spiral staircase
Explanation: Hope that helped you a ton.
what process is shown?
Answer:
A
Explanation:
it's cell cycle.
A cell cycle is a series of events that takes place in a cell as it grows and divides.
Which of the following describes the impact on human health from global climate change?
Excess greenhouse gases will cause competition among vectors for hosts, and the vectors will die off.
Global climate change will result in the warming of cooler regions and will increase the spreading of disease.
Melting glaciers will keep regions too cold and prevent vectors from migrating to these regions.
Warmer climates will prevent vectors from traveling to new regions and infecting more humans.
Answer:
B - Global climate change will result in the warming of cooler regions and will increase the spreading of disease.
Global climate change will result in the warming of cooler regions and will increase the spreading of disease. Thus, the correct option is B.
What is global climate change?Global climate change is defined to as the average long-term changes over the entire Earth. These include warming temperatures and changes in precipitation, as well as the effects of Earth's warming, such as rising sea levels. Shrinking mountain glaciers.
Climatic change has become a global issue over the last few decades. Besides, these climatic changes affect life on the earth in various ways.
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I need help with these questions I will make you Brainlest please help
click on the attachment
Zoning laws establish
a. what types of buildings can be built in an area
b. the uses an area of land can be put to
who can live in an area
d. the types of business that can occupy a building
C.
Please select the best answer from the choices provided
Answer:
Land-use zones are areas in urban areas that have particular functions, such as retail, residential and industry. All cities have different land-use zones. These include: Commercial land use: hotels, shops, offices and other businesses cluster together in the central business district (CBD) at the centre of the city.
Answer:
answer a)
what types of buildings can be built in an area
Explanation:
i just took this on edu
a funcao da membrana celular
Answer: Regulates the transport of materials entering and exiting the cell.
The portion of the membrane system in eukaryotic cells that is responsible for the making lipids and breaking down toxic substances in the
Answer:
The endoplasmic reticulum
Explanation:
Body Cells have ____ the number of chromosomes as sex cells
A. One-Half
B. Twice
C. Four Times
D. One-Fourth
Answer: A.One-Half
Explanation:
Sex cells are egg cell and sperm. These sex cells have half the number of chromosomes than the actual chromosomes. The number of chromosomes in a human body is 46. Half will be 23.
Hoped this helped you! :)
What does it mean for the brain to process information contralaterally? What about ipsilaterally? How does the corpus callosum play a role in these
processes (both contralateral and ipsilateral)? What happens when someone has a split-brain procedure?
Answer:
the answer is c I promise
Explanation:
I just took the test
what is meant by chewing the cub?
informalif you chew the cud, you spend a long time thinking or talking about something. Synonyms and related words. To think carefully or a lot about things.
diegetic sound in the film monkeys paw 2011
Question 1) Discuss how compounds in different types of organisms can be used to benefit people? ( Will Mark Brainliest).
Answer:
Compounds from different organisms are being used widely bu humans for their benefits. Some of the compounds are used as drugs. For example, penicillin is used as a drug or antibiotic. There are many plants which provides humans with other types of medicines and herbal remedies. There are other compounds which are used for cancer treatment. For example, taxol is a compound obtained from trees which are being used as anticancer drugs.
Explanation:
Which of the following best expresses the concept of natural selection
Answer:
style neutrons
Explanation:
Only 3% of the water on earth is fresh water, the kind we need for drinking and growing food. Of that 3% , how much is locked in ice caps, and permanent snow.
Answer:
2.5%
Explanation:
Would you say the rate of cell growth is increasing or decreasing? cell division
Answer:
i would say ut increases leading to production of larger cells.
Explanation:
Cell size depends on both cell growth and cell division, with a disproportionate increase in the rate of cell growth leading to production of larger cells and a disproportionate increase in the rate of cell division leading to production of many smaller cells.
Tapeworms can reproduce by _____.
Answer:
There you go! they explained it better than I could. hopefully that helps you, for more information you could simply look up an article.
Which statement is true about the energy level of solids?
A.) Solids have more energy than water
B.) Solids have more energy than plasma
C.) Solids have the most amount of energy
D.) Solids have the least amount of energy
Answer:
The answer is D.) Solids have the least amount of energy
Explanation:
Because in a solid, particles are packed tightly together so they don't move much. The electrons of each atom are constantly in motion, so the atoms have a small vibration, but they are fixed in their position. Because of this, particles in a solid have very low kinetic energy.
Using the __________ system, kingdoms are grouped based on cell structure and type, while the __________ system groups major taxonomic groups into three major domains.
Given what we know, we can confirm that using the using the Whitaker system, kingdoms are grouped based on cell structure and type, while the whoese-fox system groups major taxonomic groups into three major domains.
What is the Whitaker system?The Whitaker system is a classification system to order and organize the diverse biological life found on Earth. This is the most commonly-known system which orders organisms into the 5 kingdoms. What is the Whoese-fox system?This is a much less popular system of classification for biological life. It is considered to be much less specific, containing only 3 groupings.Therefore, we can confirm that based on the statement, the spaces missing correspond to the scientists for who the systems are named after, which are Whitaker and Whoese-fox.
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When an employee remembers the first manager who came and spoke to them on their first day of work, the event is most likely to be stored in the employee's:
Episodic Memory!
Episodic memory includes personal information on what happened and where.
Hope this helps!
Newly formed viral entities inside the living cells are called ……………………..
Answer:
answer
cytopathic viruses.
